We present the preliminary results of 235 MHz, 327 MHz and 610 MHz observations of the galaxy cluster A3562 in the core of the Shapley Concentration (SC). The purpose of these observations, carried out with the Giant Metrewave Radio Telescope (GMRT. Pune, India) was to study the radio halo located at the centre of A3562 and determine the shape of its ladio spectrum at low frequencies, in order to understand the origin of this source. In the framework of the re-acceleration model, the preliminary analysis of the halo spectrum suggests that we are observing a young source (few 108 yrs) at the beginning of the re-acceleration phase.
展开▼
机译：我们介绍了在福克西浓度（SC）的核心中的235MHz，327 MHz，327MHz和610 MHz观察的初步结果。与巨型Metrewave Radio TeleScope（GMRT）进行了这些观察的目的是研究位于A3562中心的无线环光环，并确定其LIDIO光谱的形状，以便理解这个来源的起源。在重新加速模型的框架中，晕光谱的初步分析表明我们在重新加速阶段开始时观察了年轻来源（少数108年）。
展开▼
